Breaklines in LP360- Part 4

This is the fourth edition of our series on breaklines in LP360. In this edition, we will have a look at how features are represented in LP360 as well as the tools available for collecting “flat” breaklines. Features: Features in LP360 are internally stored as files in Shape format. This is a binary standard developed…

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River Flattening in LP360

About River Flattening The River Flattening command opens the River Flattening dialog that captures input for flattening river polygons perpendicular to the flow. A river polygon layer, and centerline layer is required to execute the flattening process. Note: The River Flattening command is only available in LP360 for ArcMap. How to Flatten River Polygons River…

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River Flattening in TerraModeler, Part II

In the January 2016 Newsletter, we presented one way to accomplish river flattening using TerraModeler. In this article, we introduce an updated approach to this process, which should be more efficient. Hydro-flattening is a common requirement when it comes to delivering surface models to the U.S. Geological Survey (USGS) National Elevation Dataset (NED). According to…

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River Flattening in TerraModeler

Hydro-flattening is a common requirement when it comes to delivering surface models to the U.S. Geological Survey (USGS) National Elevation Dataset (NED). According to the USGS LIDAR Base Specification Version 1.2, a hydro-flattened surface refers to a specific kind of digital elevation model (DEM) that is required for inclusion in the NED. A hydrologically flattened…

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